class Dog:
    def __init__(self,name,age):
        self.name=name
        self.age=age
    def sit(self):
        print(f"{self.name} is now sitting")
    def roll_over(self):
        print(f"{self.name} is rolled over")

my_dog=Dog('Kimi',10)
print(f"my dog's name is {my_dog.name}")
print(f"my dog's age is {my_dog.age}")
my_dog.sit()
my_dog.roll_over()